Parts of a satellite 1. Usually, the word … The two... Antenna System. Figure 6: The Spin-Stabilized INTELSAT 6 Power System. This electronic circuit helps satellite convert received 6 GHz uplink frequency signal to 4... 2. Satellite transponder: The parts of a satellite vary depending on the satellite’s function; however, there are some components commonly found on most satellites. A satellite’s antennas have two basic missions. Antenna subsystems : 3. A satellite is a moon, planet or machine that orbits a planet or star. For example, Earth is a satellite because it orbits the sun. Likewise, the moon is a satellite because it orbits Earth. The antennas help receive and transmit the signals from the earth and towards earth respectively. Satellites must have a continuous source of electrical power--24 hours a day, 365 days a year. These include: A generic diagram of a satellite.